I think that's an unfair assessment. While I personally wouldn't rate this game 2 stars, the only thing it does remotely well is the story, theme, and of course pron if you're into monster girl lovers.
As an RPG, it's really not that great. The balance is wonky, too many convoluted systems, and it's laughably easy to abuse outside of the random difficulty spike which again just goes back to the poor balance point until, once again, the system is rebroken by random prodding.
As someone who almost exclusively plays (J)RPGs, I'd never recommend this game for its RPG elements alone. It's also definitely not the most complex RPG out there, and regardless, convoluted does not equal sophisticated, and just because something is either one doesn't mean it's a good thing.
I love this game/series to death but some of you really need to check your bias, lol. That, or play more than just pron games. It's also 3 separate games--you don't get to cheat that to its benefit.